Rotary pump.



S. 0. SMITH. ROTARY PUMP. APPLIOATIOR mm: Jun 29, 1911.

Patented Sept. 26, 1911.

' citizen of the United States of America, and

UNITED STATES PATENT OFFICE.

SAMUEL CHARLES SMITH, F DAISY, LOUISIANA.

ROTARY PUMP.

Specification o f I.etters Patent. Patented Sept. 26, 1911. Application flledIune 29, 1911.

Serial No. 886,049.

T '0 all whom it may concern:

Be it known that I, SAMUEL C. SMITH, a

a resident of Daisy, in the parish of Plaquemjnes, State of Louisiana, have invented certain new and useful Improvements in .Rotary Pumps, of which the following) isa full and clear specification, reference eing had to the accompanying drawings, in which- Figure 1 isa vertical sectional view of my improved pump, partly in side elevation; Fig. 2 is a horizontal sectional viewon the line 2- -2'of Fig. 1; and, Fig. 3 is a verticaLsectional view on the line 3-3 of Fi .-1. ,fieferring to the drawing by reference characters, a designates the pump-casing whose bottom I) is provided with a central opening a and whose lower end is adapted to depend into the body of water to be lifted.

Depending centrally into the pump-casing is a shaft d'provided at its upper end with means for rotating it and carrying at its lower end a pair of oppositely projecting paddles e. This shaft d is provided with a rigid collar 1 which bears upon a plate 9 I fastened to the upper side of the paddle- -wheel casing and thus supports the shaft in a freely-rotatable position centrally of the pump-casing and the paddle casing.

vThe paddle-wheel casing consists of a top a plate hand a bottom plate 2' both of which plates are divided transversely into halves which are bolted together by horizontal bolts 7' passing through flanges on the adjoining edges of the sections of the plates.

The joints in the bottom and top plates are coincident with each other and with vertical joints is in the paddle-wheelphambers vertical wall. This vertical wall of the paddlewheel chamber has its upper and lower edges trally with a hole 0 which serves to center and steady the lower extremity of the paddie-wheel shaft. I

Fastened to the inner face of the casing a, at opposite sides thereof, is a pair of vertical cleats p, whose lower ends are wedge-shaped at g and adapted to extend down into the space between the paddle-wheel casing and the main casing and thus center and brace the paddle-wheel casing 5 and to hold the paddle-wheel casing sohdly down against the bottom 12 these cleats are provided with shoulders 7* which bear against the upper face of the paddle-wheel casing. By making these cleats or strips p removable, the entire working apparatus of the pump may be withdrawn upwardly out of the main casing for the purpose of repair, etc. And by making the paddle Wheel casing vertical divisible into two sections, the entire interior of the paddle wheel casing may be readily exposed for cleaning and repairing.

The operation of this pump will be obvious upon inspection of the course of the water as indicated by the arrows on the drawings. The rapid rotation of the'paddles in the direction of the arrow indicated in Fig. 2 forces the water out through theoutlets Z and up into the casing a, and the water may be drawn ed at the upper end of the casing in any suitable manner. .The rotation of the paddles tends to create a vacuum at the center and thus water is caused to flow up into the paddle chamber through the openings 0 and m.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is: N

In combination, a casing, a paddle-wheel casing removably fastened in the bottom of copies of this patent may be obtained for' five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

